<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <style>
        .F1 {
            width: 75%;
            height: auto;
            margin: 15px auto;
            text-align: center; /* 使子元素水平居中 */
        }
        .S1 {
            background-color: #0b0b0b;
            width: 750px;
            height: 50px;
            position: absolute;
            left: 50%;
            transform: translateX(-50%); /* 使绝对定位的元素水平居中 */
            bottom: 252px;
        }
        .a {
            line-height: 30px;
            color: rgb(247, 243, 243);
            text-decoration: none;
            margin-left: 50px;
            display: inline-block; /* 使链接表现为块级元素，方便设置宽高 */
            line-height: 50px;
            vertical-align: middle; /* 垂直居中 */
        }
        .a:hover {
            background-color: #faf6f6;
            color: #0a0a0a;
        }
    </style> 
</head>
<body>
    <div class="F1">
        <img src="./img/sf.png" /> 
        <div class="S1">
            <a href="#" class="a">查询快递</a>
            <a href="#" class="a">查询快递</a>
            <a href="#" class="a">查询快递</a>
            <a href="#" class="a">查询快递</a>
            <a href="#" class="a">查询快递</a>
            <a href="#" class="a">查询快递</a>
        </div>
    </div>
</body>
</html>